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多参数指余密码——多参数码之二
引用本文:戎世奎,宋婷禹.多参数指余密码——多参数码之二[J].贵州教育学院学报,2013(9):1-6.
作者姓名:戎世奎  宋婷禹
作者单位:贵州师范学院,贵州贵阳550018
摘    要:f(x)=g^x modm(x∈z)叫做指余函数,两个指余函数f(x)与g(x)的乘积为f(x) g(x)=g(f(x))。当gi是素数p的一个原根时,Gi={fki(x)/k=0,±1,±2,….,±Ti}对乘法 成群,其中Ti为基本指余函数的幂周期。从G1,G2,…,Gφ(p-1)诸群中各取若干个元素作乘积,得数论函数F(x),用F(z)作为加密函数,这种密码叫做多参数指余码。介绍多参数指余码的数学原理及实用性。

关 键 词:指余函数  指余函数群  单模指余码  多模指余码

Code of a multi- parameter exponential surplus function --Multi- parameter code II
RONG Shi-kui,SONG Ting-yu.Code of a multi- parameter exponential surplus function --Multi- parameter code II[J].Journal of Guizhou Educational College(Social Science Edition),2013(9):1-6.
Authors:RONG Shi-kui  SONG Ting-yu
Institution:( Guizhou Normal College, Guiyang, Guizhou, 550018 )
Abstract:f (x) = g^x modm (x ∈z) is an exponential surplus function. The product of exponential surplus func- tionsf(x) and g(x) isf(x) g(x) = g(f(x) ) . Wben gi is a primary root of the prime number p, Gi={fki(x)/k=0,±1,±2,….,±Ti} groups through multiplication , while Ti becomes the power cycle of the basic function. The product from multiplying G1 ,G2 ,Gφ(p-1) isF(x) , an arithmetical function. When F(x) is used as an cn- cryption function, the password is known as the code of a multi -parameter exponential surplus function, the mathe- matical principles and practicability of which are discussed in this article.
Keywords:exponential surplus function  exponential surplus function group  code of a single - model exponen-tial surplus function  code of a multiple - model exponential surplus function
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